Stop-leak preparation



Patented Jan. I, 1952 Frederic D. Barton, San Francisco, Calif.

No. Drawing; Application October 10,1950, 7 Serial No. 189,484

, 3 Claims.

My invention relates to stop-leak preparations, and more particularly to that type of stop-leak preparation employed in the cooling system of engines, and has particular reference to the cooling system of automotive vehicles though not necessarily limited thereto.

Those prior art stop-leak preparations, of

which I am aware, function on the theory of forming a film or coating over the leak while in the process of being circulated around the cooling system, and while such preparations can be relied on to produce quick results in the desired direction, the film or coating thus formed,

remains directly exposed to the wearing action of the circulating water in the system and the abrasive action of any rust or grit which may be circulating around with the water.

This application is a continuation-in-part of my application for Stop-Leak Preparation,

Serial No. 15,721, filed March 18, 1948, now abandoned.

Among the objects of my invention are:

(1) To provide a novel and improved stopleak preparation;

(2) To provide a novel and improved stop leak preparation which shall produce a more durable seal;

(3) To provide a novel and improved stopleak preparation having lubricatin qualities beneficial to the water pump in a cooling system;

(4) To provide a novel and improved stopleak preparation capable of sealing cracks in radiator and engine blocks and seal leaks around hose connections;

(5) To provide a novel and improved stopleak preparation which possesses the additional factor of inhibiting the formation of rust, thus maintaining a clean cooling system;

(6) To provide a novel and improved stopleak preparation which will not congeal on exposure to the atmosphere;

(7) To provide a novel and improved stopleak preparation which blends well with known anti-freeze solutions;

(8) To provide a novel and improved s-topleak preparation having no deteriorating action on rubber or metal;

(9) To provide a novel and improved stopleak preparation which will not deteriorate with time;

(10) To provide a novel and improved stopleak preparation which may be readily prepared from cheap and well-known ingredients.

(11) To, provide a novel and improved stopleak preparation which will not form Sludgy deposits.

Additional objects 0 my invention will bebrought out in thefollowing description of a preferred embodiment of the same. I zMy invention is based upon the discovery that plant roots, including rhizomes, when suitably;

. prepared, have proper ies rendering them exceedingly effective in the stopping of leaks.

thepreparation of my stop-leak preparation, the root is ground to theconsistency of flour, preferably onewhich will pass through a 50 mesh -screen, thatis a screen; presenting 2500 openings per square inch of surface, following which, the root flour is mixed with oil and preferably an oil of the type known as a soluble cutting oil.

A soluble oil, as defined in the Chemical and Engineering Dictionary (p. 114), published by the Chemical Publishin Co. of New York, Inc., of New York city, is an oil having an emulsifier, with or without an auxiliary solvent dissolved in it, to make it dispersible in water. Soluble oil is conventionally employed in machine shop practice where it is known as cutting oil.

The relative proportions of the root flour to oil is not critical, though I prefer to employ approximately 2 pounds of the flour to each gallon of oil, and in using the same as a stop-leak preparation, it is added to the cooling system of an engine in the approximate ,ratio of 1% ounces of the preparation for each gallon of water in the system.

From the view-point of cost, I have found ginger root flour to be preferred, though from the view-point of efiectiveness as a stop-leak ingredient, other roots such as orris, turmeric, blood root, licorice, poke and sarsaparilla have comparable qualities.

As a suitable cuttin oil for use with the root flour, I prefer to employ an oil marketed by the Texas Oil Co. under the designation 810 S01- uble 011 C and said by such company to contain 9% oil soluble sodium sulphonates, the sulphonic acids being derived from petroleum, and I prefer such oil because of its non-drying character.

What the action is, is not apparent to me at this time, but I have noticed that the ginger root flour when mixed with the soluble oil, settles down into a more compact and dense mass than when mixed directly with water. In comparative tests on this basis, employing equal amounts by weight of the ginger root flour, the flour in the oil, settled out into a compact mass which measured approximately of the volume occupied by the material settling out of the water mixture.

It is conceivable, therefore, that what actually happens, is that the ginger root flour, by reason of its small particle size, is carried into the leaks however small, by the water, and gradually packs itself in, forming a dense and compact seal. Further evidence in support of this resides in the fact that complete stoppage of a leak is not instantaneous nor issuch result realized within the brief period of time in which prior art'filn'i forming type of stop-leak preparations function. Once the leak is stopped however, its durability is much more permanent.

Inasmuch as my stop-leak preparation does not rely on exposure to air for its effectiveness in plugging leaks, the preparation will notonly stop seepage and leaks in the radiator and hose connections of an automotive cooling system which are exposed to the atmosphere, but also such leaks as may exist around the combustion chambers of an engine, such as cracked engine blocks, deficient head gaskets, ete:,- ana is particularly erreanve msaeh situations in that the intense heat of combustion eeeiaeg eebnvers-phe prepai'ation or components'theroi at the" point of leak, into insoluble carbides to form a 1pc?- ma'nent'seal. V I g I Aside from the seanngsreperties my step; leak preparation, the ii-iikturai'ds i n lubrication of the water pump usually incorporated in a cooling system, and further functions as a rust inhibiter, thus maintaining the coolin'g system clean and free of rust, sediment and sludge.

the cooling system, sufiicient to maintain said walls 'clea'nand without deleterious effect on the cooling system.

claim: 1'. .A stop-leak preparation for the cooling systemof an engine, consisting essentially of ginger root flour and soluble oil.

2. A stop-leak preparation for the cooling system of an engine, consisting essentially of ginger rear flour and soluble'oil in proportions roughly or two poundsor ginger root'fiour to a gallon or soluble oil. I

v 3; A stop-leak preparation for the cooling system a: an engine, comprising a mixture of a rhizome flour and soluble oil.

'FREDERIC D. BARTON.

No references cited. 

